Download Geography Lesson Tectonics Tuesday * The largest earthquakes

 Geography Lesson Tectonics Tuesday * The largest earthquakes … 1. Plate Tectonics 7 major plates (several smaller ones) a. 3 types of plate boundaries (See 3 D maps on desk) i. Diverging Plates 1. Mid – Ocean Rift a. New lithosphere b. Youngest rock c. Mid Atlantic Rift d. Iceland e. Shield Volcano f. Basaltic Rock 2. Rift Valley Africa a. Dead Sea thru Red Sea and Rift Valley b. Mt. Kilimanjaro c. Eventually E. Africa may be separate from the rest of continent – like Saudi Arabia and Madagascar. ii. Converging Plates (3 kinds) 1. Ocean to ocean -­‐ island arcs -­‐ Hawaii 2. Ocean to continent a. 3 sides of the Pacific Ocean i. Subduction Zones ii. Ocean trenches (10k) iii. Continental shelves iv. Benoit Zones v. Folding vi. Andesitic volcanoes (Andes Mountains) which are also composite volcanoes. 3. Continent to Continent a. Himalayas iii. Horizontal Plates Movement (Transform Faults/Tear Faults/Slip Strike Faults) a. San Andreas Fault 2. Assignment 1 -­‐ Plate Tectonics assignment 3. Folding picture 4. Deformation of the Earth’s lithosphere lesson – Folding and faulting 5. Tension and Compression – licorice 6. Anticline and syncline -­‐ licorice 7. Near earth’s surface where rock is cooler – therefore brittle -­‐ tension and compression will result in the rock breaking – in geology we call this faulting. 8. The same tension and compression several kilometers below the earth’s surface will lead to folding due to the heat from the molten magma in the mantle below. -­‐ toffee example 9. Crossword and movie